<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <title>Title</title>
</head>
<body>

	<div id="app">
		{{username}}
	</div>

	<script src="../js/vuejs-2.5.16.js" type="text/javascript" charset="utf-8"></script>

	<script type="text/javascript">
		const vue = new Vue({
			el: "#app",
			data: {
				username: "zhangsan"
			}
		})
	</script>

</body>
</html>
